CN111550201A - Slurry pipe manifold distribution system - Google Patents

Abstract

The invention discloses a slurry manifold distribution system, which comprises three groups of slurry tanks, two ground manifolds, a circulating tank and a slurry remote distribution mechanism; the mud remote distribution mechanism consists of three mud pumps, each mud pump comprises a shell, and a liquid inlet, a well opening, a circulation opening and a piston assembly are arranged on each shell; the mud tank is connected with a liquid inlet of a mud pump, a through circulation port of the mud pump is connected with the circulation tank through a circulation pipeline, and the through well ports of the three mud pumps are communicated, wherein the through well ports of the two mud pumps are respectively connected with two ground manifolds and are provided with pipeline distribution valves; the scheme designs a set of mud manifold distribution system with a remote distribution mechanism, which can conveniently realize the distribution and control among a mud tank, a ground manifold and a circulating tank, form a passage in a drilling state and carry out pressure relief in a drilling stop state; the remote distribution mechanism can also control which ground manifold the mud goes to, and can meet the needs of actual drilling state.

Description

A mud manifold distribution system

technical field

The invention relates to a mud manifold distribution system, which belongs to the technical field of oil drilling equipment.

Background technique

Most of the existing drilling mud manifolds are controlled and distributed through valves, and the arrangement and distribution of pipelines and valves are complex, inconvenient to operate and control, and waste a lot of manpower and material resources.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a mud manifold distribution system in order to overcome the deficiencies of the prior art.

In order to achieve the above purpose, the technical solution adopted in the present invention is: a mud manifold distribution system, comprising three groups of mud tanks, two ground manifolds, a circulation tank and a remote mud distribution mechanism; the mud remote distribution mechanism consists of three The mud pump consists of a casing. The casing is provided with a liquid inlet, a well head, a circulation port and a piston assembly. The piston assembly controls the liquid inlet to form a passage with the well head or the circulation port; the three groups of mud tanks are respectively It is connected with the liquid inlets of the three mud pumps, the circulation ports of the three mud pumps are connected to the circulation tank through the circulation pipeline, the well ports of the three mud pumps are connected, and the well ports of the two mud pumps are respectively connected with two ground pipes. Pipeline distribution valves are installed at the two wellheads connected to the ground manifold.

Preferably, one-way check valves are provided in the two ground manifolds.

Preferably, the pipeline connecting the mud tank with the liquid inlet is provided with a passage connected with the circulation tank.

Preferably, three mud pumps are arranged side by side, a T-shaped tee joint is provided at the wellhead of the mud pump located in the middle, and the wellhead of the mud pump located on both sides is connected with the T-shaped tee of the middle mud pump through the corner tee joint. For joint connection, the pipe distribution valve is connected to the corner tee joint of the mud pump on both sides.

Preferably, the pipeline distribution valve is a manual valve.

Preferably, the circulation ports of the three mud pumps are connected through a right-angle tee joint.

Preferably, the piston assembly includes a piston housing, an upper piston rod and a lower piston rod, and the piston housing is provided with an upper piston slider and a lower piston slider; the upper piston rod and the lower piston rod pass through the wellhead and The upper piston rod and the lower piston rod are provided with a wellhead gate and a circulation port gate; the upper piston slider drives the upper piston rod to move, and the lower piston slider drives the lower piston rod to move.

Preferably, the rear end of the piston housing is provided with an indicator rod cover, and the rear ends of the upper piston rod and the lower piston rod can extend into the indicator rod cover.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art:

This scheme designs a mud manifold distribution system with a remote distribution mechanism, which can easily realize the distribution and control between the mud tank, the ground manifold and the circulation tank. The remote distribution mechanism can also control which ground manifold the mud goes to, which can meet the needs of the actual drilling state.

Description of drawings

The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings:

1 is a schematic diagram of a mud manifold distribution system according to the present invention;

Accompanying drawing 2 is the enlarged view of A place of Fig. 1;

3 is a schematic structural diagram of the mud remote distribution mechanism according to the present invention;

FIG. 4 is a schematic structural diagram of the mud pump according to the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1, a mud manifold distribution system according to the present invention includes three groups of mud tanks 1, two ground manifolds 2, a circulation tank and a remote mud distribution mechanism. The circulation tank is not shown in the figure. The two ground manifolds 2 are used to connect the derrick manifolds, and both of the two ground manifolds 2 are provided with one-way check valves.

As shown in Figure 2-4, the mud remote distribution mechanism consists of three mud pumps arranged side by side. The mud pump includes a casing 3, and the casing 3 is provided with a liquid inlet 4, a well opening 5, and a circulation opening 6 and piston assembly 7.

The three groups of mud tanks 1 are respectively connected to the liquid inlets 4 of the three mud pumps through pipelines, and the pipeline connecting the mud tanks 1 and the liquid inlets 4 is also provided with a passage connected to the circulation tank. valve.

A T-shaped tee joint is set at the well port 5 of the mud pump located in the middle, and the well port 5 of the mud pump located on both sides is connected with the T-shaped tee joint of the middle mud pump through the corner tee joint. A pipeline distribution valve 9 is arranged on the joint, and two ground manifolds 2 are respectively connected through the pipeline distribution valve 9 .

The circulation ports 6 of the three mud pumps are connected through a right-angle three-way joint, and are connected to the circulation tank through a circulation pipeline 8 .

The main body of the piston assembly 7 is a hydraulic piston cylinder, and the piston assembly 7 controls the liquid inlet 4 to form a passage with the well port 5 or the circulation port 6; the piston assembly 7 includes a piston housing 11, an upper piston rod 12 and a lower piston Rod 13, an upper piston slider 14 and a lower piston slider 15 are arranged in the piston housing 11; the upper piston rod 12 and the lower piston rod 13 pass through the well port 5 and the circulation port 6, the upper piston rod 12 and the lower piston rod 13 The piston rod 13 is provided with a wellhead gate 16 and a circulation gate gate 17; the upper piston slider 14 drives the upper piston rod 12 to move, and the lower piston slider 15 drives the lower piston rod 13 to move; the piston shell The rear end of the body 11 is provided with an indicator rod cover 18, and the rear ends of the upper piston rod 12 and the lower piston rod 13 can extend into the indicator rod cover 18 to display the working state of the piston rods.

In the drilling state, the upper piston slide 14 and the lower piston slide 15 move forward synchronously under the action of hydraulic pressure, so that the circulation port ram 17 blocks the circulation port 6, and the wellhead ram 16 allows the wellhead 5 to be opened. ; At this time, the liquid inlet 4 and the wellhead 5 form a passage, so that the mud leads to the ground manifold 2.

In the stop drilling state, the upper piston slider 14 and the lower piston slider 15 move backwards synchronously under the action of hydraulic pressure, so that the wellhead ram 16 blocks the wellhead 5, and the circulation port ram 17 allows the circulation port to be opened. 6; At this time, the liquid inlet 4 and the circulation port 6 form a passage, so that the mud leads to the circulation tank to release the pressure.

In the non-working state, such as maintenance, etc., the upper piston slider 14 and the lower piston slider 15 can move in tandem, and at this time, the well port 5 and the circulation port 6 will be respectively blocked by the upper piston rod 12 Or the well opening ram 16 and the circulation opening ram 17 of the lower piston rod 13 are blocked to ensure safety.

The pipeline distribution valve 9 is manually controlled. Since the wellheads 5 of the three mud pumps are connected, in the drilling state, close one of the pipeline distribution valves 9, and the mud will all lead to the other ground manifold 2, so that the This realizes flow control of the two ground manifolds 2 .

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with the art to understand the content of the present invention and implement it, and cannot limit the scope of protection of the present invention with this, all according to the spirit of the present invention Substantially equivalent changes or modifications should be included within the protection scope of the present invention.

Claims (8)

1. A mud manifold distribution system, characterized in that: it comprises three groups of mud tanks (1), two ground manifolds (2), a circulation tank and a mud remote distribution mechanism; the mud remote distribution mechanism consists of three mud The pump is composed, the mud pump includes a casing (3), and the casing (3) is provided with a liquid inlet (4), a well opening (5), a circulation opening (6) and a piston assembly (7), the piston assembly (7) ) controls the liquid inlet (4) to form a passage with the wellhead (5) or the circulation port (6); the three groups of mud tanks (1) are respectively connected with the liquid inlets (4) of the three mud pumps, and the three mud pumps The circulation port (6) is connected to the circulation tank through the circulation pipeline (8), the well ports (5) of the three mud pumps are connected, and the well ports (5) of the two mud pumps are respectively connected to the two ground manifolds (2 ), and pipeline distribution valves (9) are provided at the two wellheads (5) connected to the ground manifold (2). 2 . The mud manifold distribution system according to claim 1 , wherein a one-way check valve is provided in the two ground manifolds ( 2 ). 3 . 3 . The mud manifold distribution system according to claim 1 , characterized in that: the pipeline connecting the mud tank ( 1 ) with the liquid inlet ( 4 ) is provided with a passage connected with the circulation tank. 4 . 4. The mud manifold distribution system according to claim 1, characterized in that: three mud pumps are arranged side by side, a T-shaped tee joint is arranged at the wellhead (5) of the mud pump in the middle, and the mud pumps on both sides are provided with a T-shaped tee joint. The well port (5) of the pump is connected with the T-shaped three-way joint of the mud pump in the middle through the corner three-way joint, and the pipeline distribution valve (9) is connected to the corner three-way joint of the mud pump on both sides. 5. The mud manifold distribution system according to claim 1 or 4, characterized in that: the pipeline distribution valve (9) is a manual valve. 6 . The mud manifold distribution system according to claim 1 , wherein the circulation ports ( 6 ) of the three mud pumps are connected through a right-angle tee joint. 7 . 7. The mud manifold distribution system according to claim 1, characterized in that: the piston assembly (7) comprises a piston housing (11), an upper piston rod (12) and a lower piston rod (13), and the piston housing The body (11) is provided with an upper piston slider (14) and a lower piston slider (15); the upper piston rod (12) and the lower piston rod (13) pass through the well port (5) and the circulation port ( 6), the upper piston rod (12) and the lower piston rod (13) are provided with a wellhead gate (16) and a circulation gate gate (17); the upper piston slider (14) drives the upper piston rod (12) moves, the lower piston slider (15) drives the lower piston rod (13) to move. 8. The mud manifold distribution system according to claim 7, characterized in that: the rear end of the piston housing (11) is provided with an indicator rod cover (18), an upper piston rod (12) and a lower piston rod ( The rear end of 13) can extend into the indicator rod cover (18).

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